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ASTM Grade HH Steel vs. S17600 Stainless Steel

Both ASTM grade HH steel and S17600 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HH steel and the bottom bar is S17600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
270 to 410
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
8.6 to 11
Fatigue Strength, MPa 150
300 to 680
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 580
940 to 1490
Tensile Strength: Yield (Proof), MPa 270
580 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 440
550
Maximum Temperature: Mechanical, °C 1100
890
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1360
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 20
13
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.7
2.9
Embodied Energy, MJ/kg 53
42
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 27
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 53
70 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 190
850 to 4390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
34 to 54
Strength to Weight: Bending, points 20
28 to 37
Thermal Diffusivity, mm2/s 3.8
4.1
Thermal Shock Resistance, points 12
31 to 50

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Carbon (C), % 0.2 to 0.5
0 to 0.080
Chromium (Cr), % 24 to 28
16 to 17.5
Iron (Fe), % 52.9 to 64.8
71.3 to 77.6
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 11 to 14
6.0 to 7.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Titanium (Ti), % 0
0.4 to 1.2